4NRJ - 2 rue Albert Calmette ZA LES GAILLETROUS 41260 La Chaussée-Saint-Victor
CREATED IN 2008
4NRJ is a company specialised in developing innovative and performant solutions for railway infrastructures, catenary Maintenance and safety.
Our talented team is composed of experts and dedicated employees who design and build your project with you from A to Z.
Our added value: dialogue, innovation and expertise of the railway market.
TURNKEY SOLUTION
We design and build specific tools for catenary maintenance, railway signalisation and tracks.
TECHNOLOGICAL DEVELOPMENTS
According to your needs and global project, we determine with you a customised solution.
CAO-DAO/PROTOTYPING
We design a 3D model that provides a complete vision of the project and the ability check its consistency.
INSTALLATION / SERVICE
We respect our delivery dates, accompany you throughout the project and ensure regular follow-ups.
INDUSTRIALISATION
Our in-house solutions are ensured by our partners carefully chosen according to their fields of expertise.
COMMERCIALISATION
Our solutions are monitored regularly in order to provide continuous improvements.
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Everything you need to know about our company
4NRJ KEY COMPETENCIES
4NRJ assists you in implementing your global railway infrastructure project.

OUR APPROACH

We place our know-how and expertise at your service and offer you complete solutions adapted to your needs.

We design innovative and relevant solutions thanks to a perfect knowledge of our domestic market and its key actors.

We propose a long-lasting partnership, accompanying you throughout your project, from the design process to the industrialisation phase and ensuring a follow-up of the performance of the final product.

Our technical experts offer innovative solutions for your specific projects.

Commitment from everyone at 4NRJ to your project from the beginning to the end.

veille technologique TECHNOLOGICAL DEVELOPMENTS

We aim to accompany our customers in the definition of their needs and objectives to reach. Our perfect knowledge of the railway market and its key actors allows us to make proposals in bringing adapted technical solutions facing problematics encountered.

According to your needs, we propose a custom specification from the beginning to the end of your global project.

CAO-DAO prototypage 1/ CAO-DAO PROTOTYPING

Mission statement

The mission statement is done following a continuous collaboration between you and 4NRJ experts. This is a real long-lasting cooperation during the different project phases. Needs analysis done, the project design will be changing many times according to your new expressed needs. Exchange and consultation are our key-words to make this requirements specification close to your exact needs.

2/ CAO-DAO Software

According to your needs, our experts design innovative tools adapted to your project using advanced technologies. Those pioneering technologies allow us to present you shortly a graphic model that will be moving towards according to your new development axis.

4NRJ’s Team uses IT and digital tools (CAO-DAO) to design 3D models for having a complete vision of your project.

This digital model, once validated, will be later launched to Production for having a prototype.

3/ PROTOTYPING

The prototype is an essential part of the Production process: it allows us to obtain shortly a physical validation of this first part but also reduces drastically the products development duration. The prototype allows us to suggest you shortly a relevant physical solution in a fairly short time at lower cost because a model created by fast prototyping can be achieved in a few hours.

industrialisation INDUSTRIALISATION
The prototype once validated, we accompany you to the Production process.

DESIGN

The prototype once validated, we accompany you to the Production process.

The product industrialisation is ensured by reliable partners chosen by their expertise fields continuing the quality process commitment.

We accompany every single step of the Production facing if necessary dimensional, functional and regulatory constraints.

Our Production specific partners have been selected by their skills and capacity to solve all constraints inherent to the project achievement.

installation / sav SET-UP & AFTER SALES SERVICE

Ensuring often short delay, 4NRJ invests in terms of related HR recruitments and stock to respect delivery dates.

Highly motivated and passionate by our job and especially appreciating collaborative tasks, 4NRJ Team is pretty adaptable to changes and time constraints if the project requires it. Beyond the delivery, we accompany you throughout the project. We also can bring a technical help and follow-up to active operators on the ground checking product performances and suggesting improvements assessment if needed.

commercialisation COMMERCIALISATION

Over 10 years experiences and constant search of creativity allow us to design and build solutions related to 4NRJ brand: unique and innovative. All our solutions take advantage of a constant follow-up and continuous enhancement commitment. They are subjected to testing, explorations allowing you to benefit from technical, ergonomic, pioneering technologies.

CONTACT US
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Phone
+33 (0)2 54 42 05 12

Head Office
2 rue Albert Calmette
ZA LES GAILLETROUS 41260
La Chaussée-Saint-Victor